Permutation-padlock.



A. PAPINI.

PERMUTATION PADLOCK.

APPLICATION FILED AUG. 16. I915.

1,25%,71 5. v Patented Jan. 8, 1918.

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A. PAPINI.

PERMUTATION PADLOCK. APPLICATION FILED AUG; 16. 1915.

Patented Jan. 8, 1918 2 SHEETS-SHEET 2- ANTHONY PAPINI, OF SOUTH BETHLEHEM, PENNSYLVANIA, ASSIGNOR OF FGRTY-ONE ONE-HUNDREDTHS T0 MALCOLM MCTAGGART, OF BETHLEHEM, PENNSYLVANIA.

PERMUTATION-PADLOCK.

Specification of Letters Patent.

Patented Jan. 8, 1918.

Application filed August 16, 1915. Serial No. 45,805.

To all whom it may concern:

Be it known that I, ANTHONY PAPINI, a citizen of the United States, residing at South Bethlehem, in the county of N orthampton and State of Pennsylvania, have invented certain new and useful Improvements in Permutation-Padlocks, of which the following is a specification.

The present invention reiates to improvements in padlocks, and pertains more particularly to that type of permutation locks having a sliding shackle.

The present invention has for its principal object to provide a permutation lock of the class above mentioned which is simple, strong and capable of being easily operated.

Another object consists in so constructing and arranging the parts that the lock will be absolutely safe from unauthorized manipulation, and yet can be readily opened by persons familiar with the combination.

\Vith these and other objects in view, the invention consists in the construction, combination and arrangement of parts as will be hereinafter described'and claimed.

Reference is to be had to the accompany ing drawings forming part of this specification, in which similar numbers of reference indicate corresponding parts, and in which Figure l is a perspective view of the body of the lock.

Fig. 2 is a like view of the sliding shackle.

Fig. 3 is a perspective view of one of the tumblers.

Fig. 4 is a section on line H of Fig. 3.

Fig. 5 is a longitudinal section of Fig.

Fig. 6 is a bottom plan View of the lock.

Fig. 7 is a longitudinal section of Fig.

Fig. 8 is a section on line 22 of Fig. 2.

Fig. 9 is a section on line 33 of Fig.

Fig. 1( is a section on line 5-5 of Fig.

Fig. 11 is a view of the tumbler locking pm.

Fig. 12 is a sectional view of the lock in an assembled position.

Referring to the drawings, 1 indicates the body of the lock formed with a longitudinal opening or passageway 2 closed on the bottom and open on the face of the body. The lower walls of said passageway are circular in construction, while the upper walls 3 are straight. Extending upwardly from the under face of the body 1 and engaging with the longitudinal passageway 2 are a number of vertical openings or tumbler chambers 4,

adapted to receive the tumblers of the lock, the tumblers being more fully described hereinafter. Formed integrally with the body is an arm 5, having its extremity 6 in parallelism with the body. A projection or lug 7 is formed on the free end of the arm 5. Running longitudinally of the body and opening into the tumbler chambers 4 is a passageway 8 to receive a pin 9 of such construction as to etl'ectively hold the tumblers in their places. Part of the combination of the lock is arranged on the bottom of the body and part on the end of the tumbler as may be clearly'seen in Fig. 6.

The shackle 10 carries an arm 11 having a portion parallel with the main part of the shackle, in the end of which is a recess 12 into which the projection 7 fits when the lock is in a closed position. A longitudinal passage 13 is formed in the body of the shackle in the free end of which is a spring 14, having one end bearing against a transverse pin 15 and the other against the closed end of the opening 2. This spring normally holds the lock in an open position. The shackle is constructed to fit into the opening 2 in the body of the lock, the bottom being round a at 16 and the sides flat as at 17. A number of projections 18 are made on the under side of the shackle, which afford the locking means for the padlock.

The tumblers 19 are cylindrical in shape, and have a slot 20 formed in one end and running partially across the end. On the opposite or outside end and integral therewith are two rims 21 and 22, spaced apart to receive between them the pin 9 which fastens the tumblers in the chambers l. The tumblers are hollow and have across the open end a bar 23 which may be easily grasped between the thumb and finger to turn the tumbler to set the combination.

In order to open the lock, all that is required is to set the proper combination, which will bring the slots 20 in the tumblers into alinement with the projections 18 on the bottom of the shackle, thus causing the spring let to open the lock automatically.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention as claimed.

\Vhat I claim is 1. In a permutation lock, the combination with a body having a longitudinal passageway and a series of tumbler chambers, of a sliding shackle mounted in said passageway and itself having a longitudinal passageway with a spring mounted therein, means for retaining the spring, tumblers arranged in said tumbler, chambers, and a pin for holding thetumblers therein.

2. In a permutation lock, the combination with a body having openings therein, of a shackle slidably mounted in one of said openings, a longitudinal passageway in the shackle, a spring fixed in the open end thereof, a transverse pin bearing against one end of the spring to hold the spring in position, and tumblers, as and for .the purpose described.

7 3. In a lock of the character described, a body portion having a longitudinal passageway, a series of tumbler chambers opening into the said passageway, a pin-receiving opening adjacent to the bottom and side of the body, a shackle slidably mounted in the longitudinal passageway, a longitudinal passageway in the shackle, a. spring fixed in the open end of said passageway, a transverse pin to hold the spring, tumblers arranged in the tumbler chambers, and a pin in the pin-receiving opening for holding the tumblers in the chambers.

4. In a permutation lock, the combination with a body having a plurality of openings therein, a vertical arm formed integrally therewith, the free extremity of the arm being bent parallel with the body, and a projection formed on the end thereof, of a shackle slidable within one of said openings and having a longitudinal passageway therein in the free end of which is a spring, one end bearing against a transverse pin and the other against the closed end of the opening in the body portion which receives the shackle, tumblers, and means for holding the same in the tumbler chambers.

5. In a permutation lock, the combination with a body having a longitudinal passageway, a series of tumbler chambers opening into said passageway, a pin-receiving opening, and an integral arm having its extremity in parallelism with the body and having a projection on the end thereof, of a shackle slidably arranged in the longitudinal passageway of the body, a passageway formed longitudinally in the shackle, a spring fixed in the open end thereof, a transverse pin to prevent the spring slipping into the passageway, a vertical arm formed integrally with the shackle, the end portion being bent parallel with the shackle, recess in the end of the arm to receive the projection on the arm of the body, a plurality of tumblers, and a pin in the pin-receiving opening for holding the tumblers in the tumbler chambers. V

6. A permutation lock comprising a body portion having an arm formed integrally thereon, and a plurality of openings therein, a shackle shdably mountd In one of the openings, a longitudinal passageway in the shackle, a spring fixed in. said passageway, an arm'formed integrally with the shackle, a plurality of projections on the bottom of the shackle, hollow cylindrical tumblers having one end closed, a slot partially across the closed end to receive the projections on the bottom of the shackle, and means for retaining the tumblers in thebody portion.

7. In a permutation lock, the combination with a body having a longitudinal passageway open on the upper side of the body, the bottom of said passageway being rounded and the upper walls flat, a plurality of tumbler chambers opening into the said passageway, and an arm formed integrally with the body, of a shackle having its bottom rounded and side walls flat to coincide with the passageway in the body, a longitudinal passageway 'in the shackle witha spring fixed therein, an arm formed integrally therewith, tumblers arranged in the tumbler chambers, and means for holding the tumblers therein. 7 V

8. In a permutation lock, the combination with a body having a vertical arm formed integrally therewith, the free extremity of the arm being bent in parallelism with the body and having a projection on the end thereof, a longitudinal passageway, a plurality of tumbler chambers opening into said passageway, a pin-receiving opening adjacent to the bottom and side of the body, of a shackle having a vertical arm formed integrally therewitlnthe extremity of the arm being bent in parallelism with 'the shackle, a recess formed in the end thereof to receive the projection on the arm of the body, a longitudinal passageway therein, a spring in the open end thereof, one end of which bears against a transverse pin and the other against the closed end of the iongitudinal passageway in the body, projec tions formed on the bottom of the shackle, hollow cylindrical tumblers having one end closed, a slot partially across the closed end to receive the projections on the bottom of the shackle, a bar across theopen end to turn the tumblers, spaced apart rims surrounding the end of the tumblers engaging with the pin-receiving passageway in the body, and a pin to hold the tumblers in the tumbler chambers.

9. In a permutation lock. the combination with a body having a longitudinal passageway and a plurality of transverse cylindrical chambers communicating therewith, of a shackle slidably mounted in the passageway and having a longitudinal bore therein, a spring arranged in the bore, and tumblers mounted in the chambers.

10. In a permutation lock, a body provided with a longitudinal passageway hav- In testimony whereof I afiix my signature ing rounded bbottom arlgd straight sides, in the presence of two Witnesses. cylinrical tum ler cham ers communicating with the passageway, 21 shackle having a ANTHONY PAPINI bottom and sides snugly received and slid- Witnesses:

ably mounted in the passagewziy, and rev- A. L. COPE,

oluble tumblers arranged in the chambers. MALCOLM McTAccAnT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). C. 

